I just saw this on Steam ... man, I was really addicted to the original Speedball game on my old Commodore Amiga. This one looks like fun, as it supports team play over the Internet and has nice graphics to boot.

http://www.steampowered.com/v/index....me&AppId=10700

Speedball is an incredibly vicious sport that's sort of a cross of the most violent aspects of soccer, rugby and football. I remember that you scored points by disabling other players. :-)